I was practicing some M&B questions and I found that my answer is little bit far from the listed answer can any one help me to see if I did something wrong

The question was :

Given that the DOM is 27 372 kg, 12 000 kg of trip fuel and 4 000 kg of fuels expected on landing, what is the maximum allowable traffic load for the MRJT?

1)23 923

2)23 528

3)19 005

4)19 428

My soliton was : Operating mass= DOM+ Useable fuel
27372-(12000-4000)=19372 kg

so what is the correct answer I am little bit confused !

Regards